Erasing A Waypoint; Changing The Display Of Coordinates - NorthStar 961 Reference Manual

Chapter 6 - Creating Waypoints

Erasing a waypoint

Changing the display of coordinates

Page 6-16
press the KEEP OLD COORDS key), or use the new
coordinates instead (press the USE NEW COORDS key).
The CHART screen appears, showing the waypoint at
your vessel position.
At the WAYPOINTS screen, you can permanently erase any
waypoint from the database (upon erasure, if the waypoint was
part of a route, its coordinates are retained in the route as an
unnamed waypoint):
1. At the WAYPOINTS screen, press the CURSOR PAD up or
down to select the desired waypoint.
2. Press the EDIT key.
3. Press the ERASE WAYPT key.
4. After you press the ERASE WAYPT key, you're asked to
confirm this action before you proceed by pressing the
YES key (to cancel the erasure, press the NO key).
When you're viewing the WAYPOINTS screen, you can view
the position of waypoints in three different ways:
• distance and bearing
• lat/lon
• loran time differences (TDs)
Distance and bearing (DISTANCE/BRG) is always shown (often
the most useful way, since it may be easier to visualize "three
miles north" than the digits of lat/lon or TDs). These two
columns contain dashes if there is no position fix.
You can switch between lat/lon and TDs by pressing the
TDS,LT/LN key. When you use TDs, three fields appear on the
screen: GRI, TD#1, and TD#2. GRI defines the particular
geographical group of loran stations, and TD#1 and TD#2
represent the best pair of loran secondary stations. (GRI can be
set to the user's preferred GRI, as defined at the NAVIGATION
SETUP screen; see "Preferred loran GRI" starting on page
961/962 Operations and Reference Manual, Rev. A